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English 7
• The manifold pressure reading on the manometer
should be between 9.50" and 10.50" WC for an
appliance regulator converted to LP gas. If the
manifold pressure reading is below this range,
verify that the regulator has been properly
converted for use with LP gas, and that the inlet
pressure to the appliance is between 11.0" and
14.0" WC.
Check Flame Characteristics
To observe the burner flames, it may be necessary to turn
off lights or close window blinds to darken the room for
easier viewing of the flame.
1. Test STAR
®
burner ignition. Push in the burner control
knob and turn it to HI. The igniter electrode and spark
module will produce a clicking sound. Once the air has
been purged from the supply lines, the burner should
light within four seconds.
• The flames should be stable, with no excessive
noise. The inner cones of the individual flames
should be defined and separate from each other.
Portions of the flame, along the burner, should not
exhibit excessive or continuous indications of
“lifting” or “lazy flame”.
NOTE: It is normal for slight yellow tipping of the flames to
appear after a few minutes of operation using Propane (LP)
Gas. Orange-colored streaks in the flame are produced
from burning airborne debris; this is normal during initial
start up and should dissipate within a few minutes of
operation.
2. Turn valve to SIM to see that the flame continues to
wrap around the burner. Blow out the flame, or use a
quick fan motion from a writing tablet or piece of
cardboard to extinguish the flame, and then observe
the burner’s ability to reignite and wrap around (also
called “carry-over”) the burner within several seconds.
This flame “carry-over” is essential for proper burner
ignition and reignition.
3. Test reignition of the XLO and observe the carry-over
of the small simmer flames as the XLO system cycles
the burners on and off.
• If the flame performance is not acceptable it may
be necessary to readjust the valve screw for a top
burner that does not have sufficient carry-over of
the flame. Turn the valve screw very slightly
counter-clockwise until carry-over of the flame is
acceptable. (See Setting Valve Screws for the
STAR Burners).
• If the burner flame is uneven, flutters, makes
excessive noise, or lifts, some of the slots in the
burner base may be blocked with food spillage or
other debris. Clogged slots can be cleared using a
straightened paper clip, needle, or similar object.
Hard-to-remove, encrusted food or debris can
sometimes be removed using a steel wool pad or
fine wire brush.
4. Burner flames that are “lazy”, with excessively-long
flames, can be created by an incorrectly fitted burner
cap—from which many of the outer mantles of the
individual flames will tend to “coalesce” or blend
together.
Verify that the burner cap is seated properly on its
burner base. The cap should fit reasonably flat when
correctly-positioned on the base and not rock
significantly.
5. Repeat the Ignition and Flame Test procedures for
each rangetop burner.
Yellow Flames:
Further adjustment is required.
Yellow Tips on Outer Cones:
Normal for LP Gas
Soft Blue Flames:
Normal for Natural Gas
Correct burner cap Incorrect burner cap
Star
®
Star
®
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